STS Parts presents the New V-Groove Pulley 24-6100 — a rugged, precision replacement pulley for Prestolite ALH Series alternators. This 1-groove V1 class pulley directly replaces Case A45231, Delco 1846529, Prestolite 34-388 / PU-598G (original reference TP-TY6600) and is compatible with a broad set of unit numbers from Bobcat, Case, Caterpillar, Cummins, Delco, Hyster, IHC/Navistar Built 100% new and CNC-machined from cold rolled steel, it delivers long-lasting performance. Designed with bi-directional rotation, the pulley simplifies inventory and fitment. Its engineered dimensions—79mm OD, 17mm bore, 16mm belt, and 14mm hub-to-first-groove—ensure accurate operation and belt alignment. Cross-referenced with Lester numbers 7178-12, 7178-3, and 7185-12, this pulley reduces installation errors and downtime. Key Specs: Brand: STS Parts Condition: New Part Type: Pulley Pulley Class: V1 Groove: 1 Rotation: BI Shaft/Bore Dia: 17mm Outer Diameter: 79mm Belt Size: 16mm Hub to First Groove: 14mm Material: Cold rolled steel, machined Cross References: Case A45231, Delco 1846529, Prestolite 34-388 / PU-598G, TP-TY6600 Lester: 7178-12, 7178-3, 7185-12